JP4180946B2 - Rain water - Google Patents

Rain water Download PDF

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Publication number
JP4180946B2
JP4180946B2 JP2003077569A JP2003077569A JP4180946B2 JP 4180946 B2 JP4180946 B2 JP 4180946B2 JP 2003077569 A JP2003077569 A JP 2003077569A JP 2003077569 A JP2003077569 A JP 2003077569A JP 4180946 B2 JP4180946 B2 JP 4180946B2
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Prior art keywords
rainwater
impeller
opening
screen
plate
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JP2004285649A (en
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藍 羽深
孝行 国分
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は路上や庭に集まる雨水を排水管に流下させる雨水ます(「ます」に枡、桝、マスの字が充てられることがあるが、この明細書では「ます」と表記する。)に関する。
【0002】
【従来の技術】
地中に埋設する排水管へ、地上の水を流入させるために適当な間隔で雨水ますを設ける。すなわち、雨水ますは地中と地上との連絡路となる。
夏場で雨が少なく、排水管に水が流れていないときに、雨水ますの底に若干の水が溜まることがある。この溜まり水に蚊が卵を産み付け、ぼうふらが発生し、蚊が大量に発生することがあり、その対策が必要となる。
【0003】
この対策として、ますの内部に中蓋を設けて、蚊の発生や悪臭の飛散を防止することが知られている(例えば、特許文献1参照。)。
また、ますの内部に銅材を設け、銅の殺菌作用で蚊の発生を防止することが知られている(例えば、特許文献2参照。)。
【0004】
【特許文献1】
特開2002−201704公報 (第3頁、図1)
【特許文献2】
特開2000−154589公報 (第2頁、図1)
【0005】
以上の特許文献1、2を、図面を参照の上、詳しく説明する。
図8は従来の排水ますの説明図である(特許文献1の図1を写したもの。)。
従来の排水ますAは、ます本体14の上にます蓋1を取り付け、内部に中蓋3(傾斜片6,6を有す。)を開放可能に取り付けたもので、雨水が一定量を超えて一定以上の重力になると巻きばね11のばね力に抗して傾斜片6,6を開放し、降雨がないときは中蓋3の傾斜片6,6を閉じる。
【0006】
すなわち、殆どの期間において中蓋が閉じているため、外からの蚊の浸入を防ぐことができる。蚊が浸入しなければ、ぼうふらが発生する虞がない。仮に、ぼうふらが発生したとしても、成虫となった蚊が中蓋3で閉じこめられるため、蚊の発生を効果的に防止することができ、且つ、臭気の漏洩も防止することができるというものである。
【0007】
図9は従来の防蚊雨水ますの説明図である(特許文献2の図1を写したもの。)。
従来の雨水ます10は、対向する内部側壁41,43の内部にそれぞれ角棒状ガイド20,20を取り付け、これらの角棒状ガイド20,20と内部側壁42との間に板状銅部材30を差し込んだもので、水が滞留する箇所に設けた板状銅部材30の抗菌作用により、蚊が産み付けた卵を死滅させることができ、蚊の発生を防止することができるというものである。
【0008】
【発明が解決しようとする課題】
しかし、上記図8に示す特許文献1の排水ますAでは、傾斜片6,6が開いた際に蚊は中蓋3を通過することができ、少数ではあるが蚊が出入りする心配がある。
また、排水ますAでは、雨水が増水した場合、排水管13から逆流した雨水で中蓋3が破損する虞がある。
【0009】
上記図9に示す特許文献2の雨水ます10は、板状銅部材30によって排水に銅イオンが含まれて水質が変化するので、環境に悪影響を及ぼす心配がある。
【0010】
そこで、本発明の目的は、蚊の出入りをより確実に抑え、臭気の漏洩を抑制し、破損の虞がない雨水ますを提供することにある。
【0011】
【課題を解決するための手段】
上記目的を達成するために請求項1では、排水管や排水溝の途中にます本体を設置し、このます本体の上部に雨水を通す外スクリーンを取り付け、外スクリーンの下方に雨水を通す中スクリーンを配置した雨水ますにおいて、中スクリーンは、開口部を有する中仕切り板と、開口部に取り付けた回転自在の羽根車と、からなり、この羽根車の羽根で開口部を閉じることができるように構成し、中仕切り板には、中央に開けた開口部及び羽根車に向かって且つ、雨水ますの底辺に向かって傾斜する収集部を設け、収集部の一方の傾斜辺側から流入する雨水を羽根車の一方の板片に溜まるようにし、一方の傾斜辺に対向している他方の傾斜辺側から流入する雨水を他方の板片に溜まるようにして、羽根車がバランスを崩すことで回転を始めるように設けられていることを特徴とする。
【0012】
羽根車の羽根で中スクリーンの開口部を閉じるので、中スクリーンは蚊の浸入を阻止することができ、蚊の出入りをより確実に抑える。併せて、羽根車の羽根で中スクリーンの開口部を閉じるので、中スクリーンは雨水ますの底の汚濁した水から発生する悪臭の上昇流を止める。
【0013】
大雨などで排水管を通じて水が逆流し、この水が地上に向かうことがある。このときには、羽根車が回転して実質的に開口部を開き、通水可能とする。そのため、逆流水圧で中スクリーンが破損する心配はない。
【0014】
請求項2は、開口部の縁に、羽根車を囲う一対の円弧板を設けたことを特徴とする。
羽根車を囲う一対の円弧板を設けたので、羽根車の羽根がどこの位置で停止しても常に開口部を羽根と円弧板とで閉じることができ、蚊の出入りを抑えることができる。
【0015】
【発明の実施の形態】
本発明の実施の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図1は本発明に係る雨水ますの断面図であり、雨水ます11は、土12の中に配置したます本体13と、ます本体13の上部14に嵌めた外スクリーン15と、外スクリーン15の下方に配置した中スクリーン16とからなる。18,18はます本体13の下部に接続した排水管を示す。
【0016】
ます本体13は、第1〜第4側辺(図2参照)21〜24と、第1〜第4側辺21〜24の下端に形成した底辺25と、からなる。
外スクリーン15は、格子部31を有し、格子部31で雨水を通す。
【0017】
中スクリーン16は、開口部32を有する中仕切り板33と、開口部32に取り付けた回転自在の羽根車34と、からなる。35,35は中仕切り板33に取り付けた取っ手を示す。
【0018】
中仕切り板33は、ます本体13の上部14から中央に位置する羽根車34に向かって且つ、雨水ます11の底辺25の方向(矢印aの方向)に傾斜する収集部36と、中央に開けた開口部32とからなる。
【0019】
収集部36は、第1〜第4傾斜辺(図2参照)41〜44を四角錐状に成形し、開口部32の縁46,46に羽根車34を囲う一対の円弧板47,47を設け、開口部32の縁51,51(図2参照)に羽根車34を囲う一対の側板52,52(図2参照)を設けたものである。
【0020】
羽根車34は、回転軸54に羽根55を取り付けたもので、羽根55で開口部32を開閉する。
羽根55は、第1〜第6板片61〜66で構成し、第1〜第6板片61〜66のそれぞれの先端にシール材67を取り付けたもので、これらの第1〜第6板片61〜66のピッチ角度をθ・・・(・・・は複数を示す。以下同様。)に設定した。
【0021】
シール材67と円弧板47,47との隙間は、0mmに設定してシール材67を円弧板47に弱く接触させるのが望ましが、隙間を1.5mm以下に設定してもよい。Lbは第2板片62から第3板片63までの弧の長さを示す。
羽根車34を囲う円弧板47の弧の長さをLcに設定した。円弧板47の弧の長さLcは羽根55の弧の長さLbを超える値である。
【0022】
図2は図1の2矢視図であり、中スクリーン16の中仕切り板33および第1傾斜辺41、第2傾斜辺42、第4傾斜辺44と、開口部32の縁51,51に設けた羽根車34を囲う一対の側板52,52と、側板52,52に嵌合させた羽根車34の回転軸54とを示す。
【0023】
図3は図2の3部詳細図であり、側板52に嵌合させた羽根車34の回転軸54を示す。
回転軸54は、端部68にリング部材71を嵌め、リング部材71をピン72で固定し、羽根車34を回転自在に支持する。73は軸受けブッシュを示す。
羽根車34(第6板片66)と側板52との隙間Sは、1.5mm以下に設定するのが望ましい。
【0024】
図4は図1の4−4線断面図であり、中スクリーン16の開口部32に羽根車34を取り付け、羽根55の長さをLに設定し、羽根車34を一対の円弧板47,47および一対の側板52,52で囲った状態を示す。
【0025】
図5は本発明に係る雨水ますの中スクリーンの斜視図である。
中スクリーン16は、既に説明したように、開口部32を有する中仕切り板33と、開口部32に取り付けた回転自在の羽根車34と、からなり、羽根車34の羽根55の回転によって雨水を通し、羽根車34の羽根55が回転しない非回転時は閉じ状態を形成する。
【0026】
以上に述べた雨水ますの作用を次に説明する。
図6は本発明に係る雨水ますの第1作用図である。
雨水ます11の中スクリーン16は、開口部32を有する中仕切り板33と、開口部32に取り付けた回転自在の羽根車34とで構成し、羽根車34の羽根55で開口部32を閉じるので、中スクリーン16で蚊75・・・の進入を矢印▲1▼,▲1▼の如く阻止することができ、蚊75・・・の出入りをより確実に抑えることができる。
【0027】
また、中スクリーン16(中仕切り板33)の開口部32を羽根車34の羽根55で閉じるので、雨水ます11内からの上昇流を矢印▲2▼,▲2▼の如く止め、滞留させることができる。すなわち、中スクリーン16によって雨水ます11の底の汚濁した水72から矢印▲3▼の如く発生する悪臭の上昇流を止めて、雨水ます11から臭気が漏洩するのを抑制することができる。
【0028】
図7は本発明に係る雨水ますの第2作用図である。
雨水ます11の羽根車34は雨水76によって回転し、雨水76を下流に流す。具体的には、雨水76が中仕切り板33の第1傾斜辺41側から矢印▲4▼の如く流入し、第3傾斜辺43側から矢印▲5▼の如く流入すると、羽根車34の第1板片61、第2板片62に溜まる雨水76の量は第4板片64に溜まる雨水76の量より多くなり、羽根車34のバランスは崩れて、羽根車34は矢印▲6▼の如く回転を始め、雨水76を排水管18に流下させる。従って、雨水を排水することができる。
【0029】
同様に、大雨などで排水管18から水が逆流した場合も、逆流した水の流量と圧力で羽根車34は回転し、逆流した水を地表に逃がすことができる。従って、水が逆流したり滞留しても中スクリーン16が外れる心配や破損する虞はなくなる。
【0030】
図1に示すように、開口部32の縁に、羽根車34を囲う一対の円弧板47,47を設けたので、羽根車34の第1〜第6板片61〜66がどこの位置で停止しても常に開口部32を第1〜第6板片61〜66の何れかで閉じることができ、蚊の出入りを抑えることができる。
【0031】
羽根車34を囲う円弧板47の弧の長さLcは羽根55の弧の長さLbを超える値に設定したので、羽根車34の第1〜第6板片61〜66がどこの位置で停止してもより確実に開口部32を第1〜第6板片61〜66の何れかで閉じることができる。
【0032】
羽根車34と円弧板47,47との隙間を1.5mm以下に設定し且つ、図3の羽根車34と側板52との隙間Sを1.5mm以下に設定することで、羽根車34の回転抵抗を小さくするとともに、蚊の通過を抑制することができる。
【0033】
尚、本発明の実施の形態に示した羽根車34の構造は任意であり、例えば、一方向のみに回転する構成でもよく、また、羽根55の長さLを回転軸54とともに2分割以上に分割して羽根55の軽量化を図ることも可能である。
羽根55の枚数は6枚としたが、7枚以上でもよい。
【0034】
【発明の効果】
本発明は上記構成により次の効果を発揮する。
請求項1では、雨水ますの中スクリーンは、開口部を有する中仕切り板と、開口部に取り付けた回転自在の羽根車と、からなり、この羽根車の羽根で開口部を閉じることができるように構成し、中仕切り板には、中央に開けた開口部及び羽根車に向かって且つ、雨水ますの底辺に向かって傾斜する収集部を設け、収集部の一方の傾斜辺側から流入する雨水を羽根車の一方の板片に溜まるようにし、一方の傾斜辺に対向している他方の傾斜辺側から流入する雨水を他方の板片に溜まるようにして、羽根車がバランスを崩すことで回転を始めるように設けられているので、中スクリーンの羽根車と、羽根車に向かって且つ雨水ますの底辺に向かって傾斜する収集部とで蚊の進入を阻止することができ、蚊の出入りをより確実に抑えることができる。
【0035】
中スクリーンの開口部を羽根車の羽根で閉じるので、雨水ます内の上昇流を止めて滞留させることができる。すなわち、中仕切り板には、中央に開けた開口部及び羽根車に向かって且つ、雨水ますの底辺に向かって傾斜する収集部を設け、収集部の一方の傾斜辺側から流入する雨水を羽根車の一方の板片に溜まるようにし、一方の傾斜辺に対向している他方の傾斜辺側から流入する雨水を他方の板片に溜まるようにして、羽根車がバランスを崩すことで回転を始めるように設けられているので、羽根車と、羽根車に向かって且つ雨水ますの底辺に向かって傾斜する収集部とによって雨水ますの底の汚濁した水から発生する悪臭の上昇流を止めて、雨水ますから臭気が漏洩するのを抑制することができる。
【0036】
雨水ますでは、雨水が中仕切り板の一方の傾斜辺側から流入し、他方の傾斜辺側から流入すると、羽根車の一方の板片に溜まる雨水の量は他方の板片に溜まる雨水の量より多くなり、羽根車のバランスは崩れて、羽根車は回転を始め、雨水を排水管に流下させる。従って、雨水を排水することができる。
大雨などで排水管を通じて水が逆流し、この水が地上に向かうことがある。このときには、収集部の一方の傾斜辺側から流入する雨水を羽根車の一方の板片に溜まるようにし、一方の傾斜辺に対向している他方の傾斜辺側から流入する雨水を他方の板片に溜まるようにして、羽根車がバランスを崩すことで回転を始めるように設けられているので、同様に、水が逆流した場合も、逆流した水の流量と圧力で羽根車がバランスを崩すことで羽根車が回転して実質的に開口部を開き、通水可能とする。その結果、逆流水圧で中スクリーンが破損される虞をなくすることができる。
【0037】
請求項2では、開口部の縁に、羽根車を囲う一対の円弧板を設けたので、羽根車の羽根がどこの位置で停止しても常に開口部を羽根と円弧板とで閉じることができ、蚊の出入りを抑えることができる。
【図面の簡単な説明】
【図1】本発明に係る雨水ますの断面図
【図2】図1の2矢視図
【図3】図2の3部詳細図
【図4】図1の4−4線断面図
【図5】本発明に係る雨水ますの中スクリーンの斜視図
【図6】本発明に係る雨水ますの第1作用図
【図7】本発明に係る雨水ますの第2作用図
【図8】従来の排水ますの説明図
【図9】従来の防蚊雨水ますの説明図
【符号の説明】
11…雨水ます、13…ます本体、14…ます本体の上部、15…外スクリーン、16…中スクリーン、18…排水管、32…開口部、33…中仕切り板、34…羽根車、46…開口部の縁、47…円弧板、55…羽根、76…雨水。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to rainwater that causes rainwater that collects on the street or in the garden to flow down to the drain pipe (“Masu” may be filled with 枡, 桝, and trout, but in this description “Masu”). .
[0002]
[Prior art]
In order to allow the ground water to flow into the drainage pipes buried in the ground, rainwater troughs will be provided at appropriate intervals. In other words, rainwater is a connecting path between the ground and the ground.
When there is little rain in summer and water is not flowing in the drain pipe, some water may accumulate at the bottom of the rainwater. Mosquitoes lay eggs in this pooled water, and burdocks are generated, and mosquitoes may be generated in large quantities, and countermeasures are necessary.
[0003]
As a countermeasure against this, it is known to provide an inner lid inside the main body to prevent the occurrence of mosquitoes and the spread of malodors (for example, see Patent Document 1).
In addition, it is known that a copper material is provided inside and the mosquitoes are prevented from being generated by the sterilization action of copper (see, for example, Patent Document 2).
[0004]
[Patent Document 1]
JP 2002-201704 (3rd page, FIG. 1)
[Patent Document 2]
JP 2000-154589 A (2nd page, FIG. 1)
[0005]
The above Patent Documents 1 and 2 will be described in detail with reference to the drawings.
FIG. 8 is an explanatory view of a conventional drainage basin (a copy of FIG. 1 of Patent Document 1).
The conventional drainage basin A has a lid 1 mounted on the main body 14 and an inner lid 3 (having inclined pieces 6 and 6) attached in an openable manner. The rainwater exceeds a certain amount. When the gravity exceeds a certain level, the inclined pieces 6 and 6 are opened against the spring force of the winding spring 11, and when there is no rain, the inclined pieces 6 and 6 of the inner lid 3 are closed.
[0006]
That is, since the inner lid is closed during most of the period, it is possible to prevent mosquitoes from entering from the outside. If mosquitoes do not invade, there is no risk of burdling. Even if a burdock occurs, the adult mosquito is confined by the inner lid 3, so that the generation of mosquitoes can be effectively prevented and the leakage of odors can also be prevented. is there.
[0007]
FIG. 9 is an explanatory diagram of a conventional mosquito rainwater screen (a copy of FIG. 1 of Patent Document 2).
In the conventional rainwater basin 10, square bar-shaped guides 20 and 20 are respectively mounted inside opposing inner side walls 41 and 43, and a plate-like copper member 30 is inserted between the square bar-shaped guides 20 and 20 and the inner side wall 42. Therefore, the antibacterial action of the plate-like copper member 30 provided at the place where water stays can kill the eggs laid by the mosquitoes and prevent the generation of mosquitoes.
[0008]
[Problems to be solved by the invention]
However, in the drainage basin A of Patent Document 1 shown in FIG. 8 above, the mosquitoes can pass through the inner lid 3 when the inclined pieces 6 and 6 are opened, and there is a concern that the mosquitoes will enter and exit though a small number.
Further, in the drainage basin A, when the rainwater increases, the inner lid 3 may be damaged by the rainwater flowing backward from the drain pipe 13.
[0009]
The rainwater trough 10 of Patent Document 2 shown in FIG. 9 has a risk of adversely affecting the environment because copper ions are contained in the drainage by the plate-like copper member 30 and the water quality changes.
[0010]
Accordingly, an object of the present invention is to provide a rainwater trough that more reliably suppresses the entry and exit of mosquitoes, suppresses leakage of odors, and does not cause damage.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, in claim 1, a main body is installed in the middle of a drain pipe or a drain groove, an outer screen for passing rainwater is attached to the upper portion of the main body, and an inner screen for passing rainwater below the outer screen. In the rainwater basin, the middle screen is composed of a partition plate having an opening and a rotatable impeller attached to the opening, so that the opening can be closed with the blades of the impeller. The partition plate is provided with a collecting portion that is inclined toward the opening and the impeller opened in the center and toward the bottom of the rainwater basin, and the rainwater flowing in from one inclined side of the collecting portion is provided. The impeller rotates so that it collects on one plate piece of the impeller, and rainwater flowing from the other inclined side facing the one inclined side accumulates on the other plate piece, and the impeller loses balance. To start And it is provided.
[0012]
Since the opening of the middle screen is closed by the blades of the impeller, the middle screen can prevent mosquitoes from entering and more reliably prevent mosquitoes from entering and leaving. In addition, since the opening of the middle screen is closed by the impeller blades, the middle screen stops the upward flow of bad odor generated from the polluted water at the bottom of the rainwater.
[0013]
Water may flow back through the drainage pipe due to heavy rain, and this water may go to the ground. At this time, the impeller rotates to substantially open the opening so that water can flow. Therefore, there is no worry that the middle screen is damaged by the backflow water pressure.
[0014]
According to a second aspect of the present invention, a pair of arc plates surrounding the impeller are provided at the edge of the opening.
Since the pair of arc plates surrounding the impeller is provided, the opening can always be closed with the vanes and the arc plate regardless of the position of the impeller blades, and the entry and exit of mosquitoes can be suppressed.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a cross-sectional view of a rainwater trough according to the present invention. A rainwater trough 11 is composed of a main body 13 disposed in a soil 12, an outer screen 15 fitted on an upper portion 14 of the main body 13, and an outer screen 15. It consists of a middle screen 16 arranged below. Reference numerals 18 and 18 denote drain pipes connected to the lower part of the main body 13.
[0016]
The main body 13 includes first to fourth side edges (see FIG. 2) 21 to 24 and a bottom edge 25 formed at the lower ends of the first to fourth side edges 21 to 24.
The outer screen 15 has a lattice portion 31 and allows rainwater to pass through the lattice portion 31.
[0017]
The intermediate screen 16 includes an intermediate partition plate 33 having an opening 32 and a rotatable impeller 34 attached to the opening 32. Reference numerals 35 and 35 denote handles attached to the partition plate 33.
[0018]
The partition plate 33 is further opened from the upper part 14 of the main body 13 toward the impeller 34 located in the center and inclined in the direction of the bottom 25 of the rainwater 11 (direction of the arrow a), and in the center. Opening 32.
[0019]
The collecting unit 36 forms first to fourth inclined sides (see FIG. 2) 41 to 44 into a quadrangular pyramid shape, and includes a pair of arc plates 47 and 47 surrounding the impeller 34 on the edges 46 and 46 of the opening 32. A pair of side plates 52, 52 (see FIG. 2) surrounding the impeller 34 is provided on the edges 51, 51 (see FIG. 2) of the opening 32.
[0020]
The impeller 34 is obtained by attaching a blade 55 to a rotating shaft 54, and opens and closes the opening 32 by the blade 55.
The blade | wing 55 is comprised with the 1st-6th board pieces 61-66, and attached the sealing material 67 to each front-end | tip of the 1st-6th board pieces 61-66, These 1st-6th plates The pitch angle of the pieces 61 to 66 was set to θ (... indicates a plurality. The same applies hereinafter).
[0021]
The gap between the seal material 67 and the arc plates 47, 47 is preferably set to 0 mm, and the seal material 67 is desirably brought into weak contact with the arc plate 47, but the gap may be set to 1.5 mm or less. Lb indicates the length of the arc from the second plate piece 62 to the third plate piece 63.
The arc length of the arc plate 47 surrounding the impeller 34 was set to Lc. The arc length Lc of the arc plate 47 is a value exceeding the arc length Lb of the blade 55.
[0022]
FIG. 2 is a view taken in the direction of the arrow 2 in FIG. 1, and includes a partition plate 33, a first inclined side 41, a second inclined side 42, a fourth inclined side 44, and edges 51, 51 of the opening 32. A pair of side plates 52 and 52 surrounding the provided impeller 34 and a rotating shaft 54 of the impeller 34 fitted to the side plates 52 and 52 are shown.
[0023]
FIG. 3 is a detailed view of part 3 of FIG. 2 and shows the rotating shaft 54 of the impeller 34 fitted to the side plate 52.
The rotary shaft 54 has a ring member 71 fitted to an end portion 68, the ring member 71 is fixed by a pin 72, and the impeller 34 is rotatably supported. Reference numeral 73 denotes a bearing bush.
The gap S between the impeller 34 (sixth plate piece 66) and the side plate 52 is preferably set to 1.5 mm or less.
[0024]
4 is a cross-sectional view taken along line 4-4 of FIG. 1. An impeller 34 is attached to the opening 32 of the middle screen 16, the length of the vane 55 is set to L, and the impeller 34 is paired with a pair of arc plates 47, 47 and a pair of side plates 52 and 52 are shown.
[0025]
FIG. 5 is a perspective view of the rainwater screen in the present invention.
As described above, the middle screen 16 is composed of the partition plate 33 having the opening 32 and the rotatable impeller 34 attached to the opening 32, and rainwater is collected by the rotation of the blade 55 of the impeller 34. The closed state is formed when the blades 55 of the impeller 34 are not rotated.
[0026]
Next, the action of the above-described rainwater mass will be described.
FIG. 6 is a first operation diagram of rainwater according to the present invention.
The middle screen 16 of the rainwater trough 11 is composed of a partition plate 33 having an opening 32 and a rotatable impeller 34 attached to the opening 32, and the opening 32 is closed by the blade 55 of the impeller 34. Further, the mosquito 75... Can be prevented from entering by the middle screen 16 as indicated by the arrows (1) and (1), and the mosquito 75.
[0027]
Further, since the opening 32 of the intermediate screen 16 (intermediate partition plate 33) is closed by the blade 55 of the impeller 34, the upward flow from the inside of the rainwater 11 is stopped and retained as indicated by arrows (2) and (2). Can do. That is, the middle screen 16 can stop the upward flow of bad odor generated from the polluted water 72 at the bottom of the rainwater masu 11 as shown by the arrow (3), and can suppress the leakage of the odor from the rainwater masu 11.
[0028]
FIG. 7 is a second action diagram of rainwater according to the present invention.
The 11 impellers 34 of the rainwater are rotated by the rainwater 76 and flow the rainwater 76 downstream. Specifically, when rainwater 76 flows in from the first inclined side 41 side of the partition plate 33 as indicated by an arrow (4) and flows in from the third inclined side 43 as indicated by an arrow (5), The amount of rain water 76 that accumulates on the first plate piece 61 and the second plate piece 62 is greater than the amount of rain water 76 that accumulates on the fourth plate piece 64, the balance of the impeller 34 is lost, and the impeller 34 is indicated by the arrow (6). Rotation is started, and rainwater 76 flows down to the drain pipe 18. Therefore, rainwater can be drained.
[0029]
Similarly, when water flows backward from the drain pipe 18 due to heavy rain or the like, the impeller 34 rotates with the flow rate and pressure of the backflowed water, and the backflowed water can escape to the ground surface. Therefore, there is no fear that the middle screen 16 will come off or be damaged even if water flows backward or stays.
[0030]
As shown in FIG. 1, since the pair of arc plates 47 and 47 surrounding the impeller 34 are provided at the edge of the opening 32, where the first to sixth plate pieces 61 to 66 of the impeller 34 are located. Even if it stops, the opening part 32 can always be closed with either the 1st-6th board pieces 61-66, and the entrance and exit of a mosquito can be suppressed.
[0031]
Since the arc length Lc of the circular arc plate 47 surrounding the impeller 34 is set to a value exceeding the arc length Lb of the vane 55, the position where the first to sixth plate pieces 61 to 66 of the impeller 34 are located. Even if it stops, the opening part 32 can be more reliably closed by any of the first to sixth plate pieces 61 to 66.
[0032]
The clearance between the impeller 34 and the arc plates 47, 47 is set to 1.5 mm or less, and the clearance S between the impeller 34 and the side plate 52 in FIG. While reducing the rotation resistance, the passage of mosquitoes can be suppressed.
[0033]
The structure of the impeller 34 shown in the embodiment of the present invention is arbitrary. For example, it may be configured to rotate in only one direction, and the length L of the blade 55 is divided into two or more parts together with the rotating shaft 54. It is also possible to reduce the weight of the blade 55 by dividing.
The number of blades 55 is six, but it may be seven or more.
[0034]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
In the first aspect of the present invention, the rainwater screen has a partition plate having an opening and a rotatable impeller attached to the opening, and the opening can be closed by the blades of the impeller. The partition plate is provided with a collecting portion that is inclined toward the bottom of the rainwater basin, and the rainwater that flows in from one inclined side of the collecting portion. Is collected in one plate piece of the impeller, and rainwater flowing in from the other inclined side facing the one inclined side is collected in the other plate piece so that the impeller loses its balance. Since it is provided to start rotating, it is possible to prevent the entry of mosquitoes with the impeller of the middle screen and the collection part inclined toward the impeller and toward the bottom of the rainwater basin. Can be more reliably suppressed
[0035]
Since the opening of the middle screen is closed by the impeller blades, the upward flow in the rainwater can be stopped and retained. In other words, the partition plate is provided with a centrally opened opening and a collecting portion that is inclined toward the impeller and toward the bottom of the rainwater basin, and the rainwater flowing from one inclined side of the collecting portion is impeller Rotate the impeller so that it collects on one plate piece of the car, and rainwater flowing in from the other inclined side facing the one inclined side is collected on the other plate piece so that the impeller loses its balance. Since it is set up to start, the rising flow of bad odor generated from the polluted water at the bottom of the rainwater trough is stopped by the impeller and the collecting part inclined toward the bottom of the rainwater trough. Because of rainwater, odor leakage can be suppressed.
[0036]
In the case of rainwater, when rainwater flows in from one inclined side of the partition plate and flows in from the other inclined side, the amount of rainwater that accumulates on one plate of the impeller is the amount of rainwater that accumulates on the other plate. More and more, the impeller is out of balance and the impeller begins to rotate, causing rainwater to flow down the drain. Therefore, rainwater can be drained.
Water may flow back through the drainage pipe due to heavy rain, and this water may go to the ground. At this time, rainwater flowing in from one inclined side of the collecting unit is accumulated in one plate piece of the impeller, and rainwater flowing in from the other inclined side facing the one inclined side is collected in the other plate. Since the impeller starts to rotate when the impeller is out of balance so that it collects in a piece, the impeller loses balance due to the flow rate and pressure of the backflowed water. Thus, the impeller rotates to substantially open the opening and allow water to pass therethrough. As a result, it is possible to eliminate the possibility that the intermediate screen is damaged by the backflow water pressure.
[0037]
In claim 2, since the pair of arc plates surrounding the impeller is provided at the edge of the opening, the opening can always be closed with the vane and the arc plate regardless of the position of the impeller blades. And can prevent mosquitoes from entering and leaving.
[Brief description of the drawings]
1 is a cross-sectional view of a rainwater basin according to the present invention. FIG. 2 is a cross-sectional view taken along arrow 2 in FIG. 1. FIG. 3 is a detailed view of part 3 in FIG. 5] Perspective view of the screen in the rainwater trough according to the present invention [Fig. 6] First action diagram of the rainwater trough according to the present invention [Figure 7] Second action diagram of the rainwater trough according to the present invention [Figure 8] Illustration of draining basin [Fig. 9] Illustration of conventional mosquito rainwater basin [Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Rainwater masu, 13 ... Masu body, 14 ... Masu top part, 15 ... Outer screen, 16 ... Middle screen, 18 ... Drain pipe, 32 ... Opening part, 33 ... Partition board, 34 ... Impeller, 46 ... Edge of opening, 47 ... arc plate, 55 ... blade, 76 ... rainwater.

Claims (2)

排水管や排水溝の途中にます本体を設置し、このます本体の上部に雨水を通す外スクリーンを取り付け、外スクリーンの下方に雨水を通す中スクリーンを配置した雨水ますにおいて、
前記中スクリーンは、開口部を有する中仕切り板と、前記開口部に取り付けた回転自在の羽根車と、からなり、この羽根車の羽根で開口部を閉じることができるように構成し、前記中仕切り板には、中央に開けた前記開口部及び前記羽根車に向かって且つ、前記雨水ますの底辺に向かって傾斜する収集部を設け、該収集部の一方の傾斜辺側から流入する雨水を前記羽根車の一方の板片に溜まるようにし、前記一方の傾斜辺に対向している他方の傾斜辺側から流入する雨水を他方の板片に溜まるようにして、前記羽根車がバランスを崩すことで回転を始めるように設けられていることを特徴とする雨水ます。
Install the main body in the middle of the drainage pipe or drainage groove, install an outer screen to pass rainwater on the upper part of this main body, and place the inner screen to pass rainwater below the outer screen.
Wherein in the screen, and the partition plate in having an opening, a rotatable impeller mounted on the opening portion consist, configured to be able to close the opening in the blade of the impeller, said in The partition plate is provided with a collecting portion that is inclined toward the opening and the impeller opened in the center and toward the bottom of the rainwater basin, and rainwater flowing from one inclined side of the collecting portion is provided. The impeller loses its balance so that it collects on one plate piece of the impeller and rainwater flowing in from the other inclined side facing the one inclined side is collected on the other plate piece. Rainwater is characterized by being provided to start rotating .
前記開口部の縁に、羽根車を囲う一対の円弧板を設けたことを特徴とする請求項1記載の雨水ます。  The rainwater according to claim 1, wherein a pair of arc plates surrounding the impeller are provided at an edge of the opening.
JP2003077569A 2003-03-20 2003-03-20 Rain water Expired - Fee Related JP4180946B2 (en)

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